internal LoadedType GetLoadedTypeByTypeName(string typeName)
{
ErrorUtilities.VerifyThrowArgumentNull(typeName, nameof(typeName));
// Only one thread should be doing operations on this instance of the object at a time.
Type type = _typeNameToType.GetOrAdd(typeName, (key) =>
{
if ((_assemblyLoadInfo.AssemblyName != null) && (typeName.Length > 0))
{
try
{
// try to load the type using its assembly qualified name
Type t2 = Type.GetType(typeName + "," + _assemblyLoadInfo.AssemblyName, false /* don't throw on error */, true /* case-insensitive */);
if (t2 != null)
{
return(!_isDesiredType(t2, null) ? null : t2);
}
}
catch (ArgumentException)
{
// Type.GetType() will throw this exception if the type name is invalid -- but we have no idea if it's the
// type or the assembly name that's the problem -- so just ignore the exception, because we're going to
// check the existence/validity of the assembly and type respectively, below anyway
}
}
if (Interlocked.Read(ref _haveScannedPublicTypes) == 0)
{
lock (_lockObject)
{
if (Interlocked.Read(ref _haveScannedPublicTypes) == 0)
{
ScanAssemblyForPublicTypes();
Interlocked.Exchange(ref _haveScannedPublicTypes, ~0);
}
}
}
foreach (KeyValuePair <string, Type> desiredTypeInAssembly in _publicTypeNameToType)
{
// if type matches partially on its name
if (typeName.Length == 0 || TypeLoader.IsPartialTypeNameMatch(desiredTypeInAssembly.Key, typeName))
{
return(desiredTypeInAssembly.Value);
}
}
return(null);
});
return(type != null ? new LoadedType(type, _assemblyLoadInfo, _loadedAssembly) : null);
}
private LoadedType GetLoadedType(Concurrent.ConcurrentDictionary <TypeFilter, Concurrent.ConcurrentDictionary <AssemblyLoadInfo, AssemblyInfoToLoadedTypes> > cache, string typeName, AssemblyLoadInfo assembly)
{
// A given type filter have been used on a number of assemblies, Based on the type filter we will get another dictionary which
// will map a specific AssemblyLoadInfo to a AssemblyInfoToLoadedTypes class which knows how to find a typeName in a given assembly.
Concurrent.ConcurrentDictionary <AssemblyLoadInfo, AssemblyInfoToLoadedTypes> loadInfoToType =
cache.GetOrAdd(_isDesiredType, (_) => new Concurrent.ConcurrentDictionary <AssemblyLoadInfo, AssemblyInfoToLoadedTypes>());
// Get an object which is able to take a typename and determine if it is in the assembly pointed to by the AssemblyInfo.
AssemblyInfoToLoadedTypes typeNameToType =
loadInfoToType.GetOrAdd(assembly, (_) => new AssemblyInfoToLoadedTypes(_isDesiredType, _));
return(typeNameToType.GetLoadedTypeByTypeName(typeName));
}
